Strange 256mb DIMM EDO TSOP RO module?

[Vernon_2]

I hope someone here can help me identify a strange memory module. It has 168 pins and the 2 locating slots, but the slot closest to the end is off by about 1/16th of an inch and therefore won't lock down. Now, since I have 4 of these = 1 gig, I am trying to figure what they are and what they fit. They are made by Hyundai, P/N/ HYM5V72A3204. There is also a white sticker that says 5000331 MEM DIMM 256MB EDO TSOP RO. And a Hyundai sticker with 9946 on it. The chips on it say HY51V65404A TC-50 9937A KOREA. There are 36 of these on it and 2 smaller chips. I have a Netserver LHPro and they won't fit because of that one slot. Any ideas on what they are and what they will fit? The pic shows a standard stick of 168 pin on top of the Hyundai so you can see the slots.

[Vernon_2]

Here is MUCH better picture of them.

[Vernon_2]

Let's try it again, I am taking a full picture of the memory, and the file is only 500kb, so let's try it cropped.

[Tarjei Aase]

Look at http://www.kingston.com/china/tools/bits/bit27.asp

It has some information about the different key layout.

[Vernon_2]

Perfect, that is what I was looking for.

[Harriet Martens]

In have a memory dimm with the same chip numbers, we use these dimms in our RAID array controller cards.